A 1.6-GHz Sub-Nyquist-Sampled Wideband Beamformer on an RFSoC
Open accessAbstract
This paper presents how to simultaneously achieve elemental sub-Nyquist sampling and true-time-delay (TTD) beamforming using a contemporary RF system-on-a-chip (RFSoC) by outlining the development of a 1.6 GHz S-band phased array system implemented using a Xilinx 8-channel 4 GSPS RFSoC. RFSoCs integrate a high speed analog-to-digital converters (ADC) and digital-to-analog converters (DAC) with a Field Programmable Gate Array (FPGA) and system-on-a-chip (SoC) architecture on a singular device, enabling direct sampling of RF signals. Thus, the RFSoC is the only hardware in this beamformer apart from the antenna aperture. This enabling technology facilitates the development of compact all-digital arrays, which massively increases the available degrees of freedom in system control enabling a paradigm shift in industry and engineering communities. The efficacy of our modular approach is confirmed via our research testbed.
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A direct-form realization of the digital DVM beamformer can be realized using Thiran filters for realizing each fractional sample delay.
“Although a direct-form realization of the digital DVM beamformer [50] can be realized using Thiran filters for realizing each fractional sample delay”
From Thiran Filters for Wideband DSP-Based Multi-Beam True Time Delay RF Sensing Applications (2024) · cites this paper as [50]
The 'True Time Delay Units' section says fractional-sample delays require a digital filter, and 'Sub-Nyquist-Sampled Beamforming' says this beamformer implements them with FIR filters. Our copy does not describe a direct-form DVM beamformer or the use of Thiran filters; its 'Approximate Fractional-Sample Delay Filter' section instead describes a Blackman-windowed FIR design. (LLM, conf=0.82)
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Cites
Beamforming: a versatile approach to spatial filtering
Van Veen, B. D., & Buckley, K. M. (1988) · IEEE ASSP Magazine · doi:10.1109/53.665 · Cited by 3,901 · see citing works
(1999) · Sensor Review · doi:10.1108/sr.1999.08719bae.004 · Cited by 1,843 · see citing works
Hansen, R. C. (1998) · Wiley eBooks · doi:10.1002/0471224219 · Cited by 1,699 · see citing works
Splitting the unit delay [FIR/all pass filters design]
Laakso, T. I., Valimaki, V., Karjalainen, M., & Laine, U. K. (1996) · IEEE Signal Processing Magazine · doi:10.1109/79.482137 · Cited by 1,168 · cited 1× · see citing works
“unity gain and linear phase [27], as prescribed by the time shift property of the Fourier transform.”
True Time Delay in Phased Arrays
Rotman, R., Tur, M., & Yaron, L. (2016) · Proceedings of the IEEE · doi:10.1109/jproc.2016.2515122 · Cited by 250 · see citing works
Principles of fractional delay filters
Välimäki, V., & Laakso, T. I. (2002) · IEEE International Conference on Acoustics Speech and Signal Processing · doi:10.1109/icassp.2000.860248 · Cited by 159 · see citing works
True time-delay beamsteering for radar
Longbrake, M. B. (2012) · IEEE National Aerospace and Electronics Conference (NAECON) · doi:10.1109/naecon.2012.6531062 · Cited by 146 · see citing works
Wideband Spectrum Sensing With Sub-Nyquist Sampling in Cognitive Radios
Sun, H., Chiu, W., Jiang, J. S., et al. (2012) · IEEE Transactions on Signal Processing · doi:10.1109/tsp.2012.2212892 · Cited by 133 · see citing works
A 1-GHz 16-Element Four-Beam True-Time-Delay Digital Beamformer
Jang, S., Lu, R., Jeong, J., & Flynn, M. P. (2019) · IEEE Journal of Solid-State Circuits · doi:10.1109/jssc.2019.2894357 · Cited by 78 · see citing works
Wang, F., Fang, J., Duan, H., et al. (2018) · IEEE Transactions on Signal Processing · doi:10.1109/tsp.2018.2875420 · Cited by 52 · see citing works
Sub-Nyquist Sampling and Fourier Domain Beamforming in Volumetric Ultrasound Imaging
Burshtein, A., Birk, M., Chernyakova, T., Eilam, A., Kempinski, A., & Eldar, Y. C. (2016) · IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control · doi:10.1109/tuffc.2016.2535280 · Cited by 38 · see citing works
Pulipati, S., Ariyarathna, V., Silva, U. D., Akram, N., Alwan, E., Madanayake, A., Mandal, S., & Rappaport, T. S. (2019) · 2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) · doi:10.1109/comcas44984.2019.8958039 · Cited by 29 · see citing works
A Sub-Nyquist, Variable Sampling, High-Frequency Phased Array Beamformer
Samson, C. A., Bezanson, A., & Brown, J. A. (2016) · IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control · doi:10.1109/tuffc.2016.2646925 · Cited by 21 · see citing works
Phased array radar cost reduction through the use of commercial RF systems on a chip
Fagan, R., Robey, F. C., & Miller, L. (2018) · Proceedings of the IEEE National Radar Conference · doi:10.1109/radar.2018.8378686 · Cited by 20 · see citing works
ARESTOR: A Multi-role RF Sensor based on the Xilinx RFSoC
Peters, N., Horne, C. P., & Ritchie, M. A. (2022) · European Radar Conference (EuRAD) · doi:10.23919/eurad50154.2022.9784466 · Cited by 19 · see citing works
IMPACT — A common building block to enable next generation radar arrays
Hoffmann, T., Fulton, C., Yeary, M., Saunders, A., Thompson, D., Murmann, B., Chen, B., & Guo, A. (2016) · 2016 IEEE Radar Conference (RadarConf) · doi:10.1109/radar.2016.7485175 · Cited by 18 · see citing works
Self-citationClark, T., & Jaska, E. (2010) · IEEE International Symposium on Phased Array Systems and Technology (PAST) · doi:10.1109/array.2010.5613396 · Cited by 12 · see citing works
TDU quantization error impact on wideband phased-array performance
Corbin, J., & Howard, R. L. (2002) · doi:10.1109/past.2000.858996 · Cited by 11 · see citing works
Measured performance of the IMPACT common module — a building block for next generation phase arrays
Hoffmann, T., Fulton, C. J., Yeary, M. B., et al. (2016) · IEEE International Symposium on Phased Array Systems and Technology (PAST) · doi:10.1109/array.2016.7832593 · Cited by 10 · see citing works
Self-citationPhased Array Bandwidth Defined by Beam Squint and Pulse Dispersion
Haupt, R. L. (2019) · IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) · doi:10.1109/apusncursinrsm.2019.8888391 · Cited by 8 · see citing works
Steiner, K. A., & Yeary, M. B. (2022) · IEEE Transactions on Aerospace and Electronic Systems · doi:10.1109/taes.2022.3176844 · Cited by 8 · see citing works
Self-citationJemison, W. D. (2002) · IEEE Transactions on Microwave Theory and Techniques · doi:10.1109/tmtt.2002.800446 · Cited by 7 · see citing works
Multiplexing of OFDM-Based Radar Networks
Werbunat, D., Sgroi, F., Knill, C., et al. (2021) · Proceedings of the IEEE National Radar Conference · doi:10.1109/radarconf2147009.2021.9455150 · Cited by 7 · see citing works
An Update on the Fully Digital Phased Array Development for Next Generation Weather Radar
Harger, M. A., Conway, M. D., Thomas, H. G., et al. (2022) · Proceedings of the IEEE National Radar Conference · doi:10.1109/radarconf2248738.2022.9764346 · Cited by 7 · see citing works
Multi Tile Synchronization and Calibration of Xilinx RF SoC ZCU216 for Digital Beamforming
Dusari, N. R., & Rawat, M. (2022) · IEEE Wireless Antenna and Microwave Symposium (WAMS) · doi:10.1109/wams54719.2022.9848277 · Cited by 7 · see citing works
Prager, S., Hawkins, B. P., Anderson, M., et al. (2022) · IEEE International Geoscience and Remote Sensing Symposium (IGARSS) · doi:10.1109/igarss46834.2022.9883873 · Cited by 6 · see citing works
Airborne Polarimetric Doppler Weather Radar: Antenna Aperture and Beam Forming Architecture
Vivekanandan, J., Karboski, A., & Loew, E. (2019) · doi:10.1109/past43306.2019.9020932 · Cited by 4 · see citing works
Rapid Integration of a Flexible, Wideband Beamformer with Wideband Antenna Technology
Hoffmann, T., Jensen, D., Moran, J., et al. (2019) · doi:10.1109/past43306.2019.9021106 · Cited by 4 · see citing works
Herndon, M. M., Yeary, M. B., & Palmer, R. D. (2020) · IEEE International Radar Conference · doi:10.1109/radar42522.2020.9114611 · Cited by 4 · see citing works
Self-citationGurov, I. P., Taratin, M., & Zakharov, A. A. (2006) · AIP conference proceedings · doi:10.1063/1.2361215 · Cited by 2 · see citing works
Flagged first, then by citations
Research works printed but not linked: 1
- F. B. Gross and J. Volakis, Smart Antennas. McGraw-hill, 2005.
Cited by
Sorted by citations
Thiran Filters for Wideband DSP-Based Multi-Beam True Time Delay RF Sensing Applications
Perera, S. M., Rathnasekara, G., & Madanayake, A. (2024) · Sensors · doi:10.3390/s24020576 · Cited by 5 · see citing works
“Although a direct-form realization of the digital DVM beamformer [50] can be realized using Thiran filters for realizing each fractional sample delay, we proposed to reduce the computational complexity of the multi-beam beamformer by exploiting sparse factorization of the DVM in [7] followed by the…”
Method
- Authors
- Steiner, K. A., & Yeary, M. B.
- Affiliations
- University of Oklahoma (US)
- Venue
- IEEE Transactions on Radar Systems
- Published
- 2023
- Volume
- 1
- Pages
- 308-317
- ISSN
- 2832-7357 (ISSN-L)
- OpenAlex
- W4384080730
- Cited by
- 20
- References
- 30
- Citations by year
- 2026: 4 · 2025: 6 · 2024: 8 · 2023: 2
- FWCI
- 2.44
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Locations
- IEEE Transactions on Radar Systems (publishedVersion, cc-by)
- Funders
- U.S. Office of Naval Research (N00014-18-1-2896)
- Topics
- Physical Sciences › Engineering › Aerospace Engineering › Radar Systems and Signal Processing
- Physical Sciences › Computer Science › Signal Processing › Digital Filter Design and Implementation
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Radio Frequency Integrated Circuit Design
- Keywords
- sub-Nyquist sampling, phased arrays, S-band, direct RF sampling, FPGA, analog-to-digital converter, digital-to-analog converter
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